Roll cage



FIG. 1 is perspective view of a roll cage;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken line showing of FIGS. 1-7 is for the purpose of illustrating environmental structure and portions of the article to which the design is applied and forms no part of the claimed design. 

CLAIM The ornamental design for a roll cage, as shown and described. 